Question

Is there any way deferring PHP code?

Like in javascript we use <script defer="defer"></script>. Is there any way to do the same with PHP-code?

UPDATE:
Here is the code I use:

Info: This code is located in my sidebar and causes the website to stop for 2-3 seconds when loading. I’m trying to skip this prosess and load this code when the rest of the site has loaded…. I’m open for other coding-solutions too.

<div style="padding:5px;">
<?php
function currency($from_Currency,$to_Currency,$amount) {
$amount = urlencode($amount);
$from_Currency = urlencode($from_Currency);
$to_Currency = urlencode($to_Currency);
$url = "http://www.google.com/ig/calculator?hl=en&q=$amount$from_Currency=?$to_Currency";
$ch = curl_init();
$timeout = 0;
curl_setopt ($ch, CURLOPT_URL, $url);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_USERAGENT , "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)");
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$rawdata = curl_exec($ch);
curl_close($ch);
$data = explode('"', $rawdata);
$data = explode('"', $data['3']);
$var = $data['0'];
return round($var,1);
}
?>


<div style="padding:2px; border-bottom:1px solid #EFEFEF;">1 USD er <?php echo currency("USD","NOK",1); ?> NOK<br />
</div>

<div style="padding:2px; border-bottom:1px solid #EFEFEF;">1 EUR er <?php echo currency("EUR","NOK",1); ?> NOK<br />
</div>

<div style="padding:2px; border-bottom:1px solid #EFEFEF;">1 GBP er <?php echo currency("GBP","NOK",1); ?> NOK<br />
</div>

<div style="padding:2px; border-bottom:1px solid #EFEFEF;">1 SEK er <?php echo currency("SEK","NOK",1); ?> NOK<br />
</div>

<div style="padding:2px; border-bottom:1px solid #EFEFEF;">1 DKK er <?php echo currency("DKK","NOK",1); ?> NOK<br />
</div>

</div>

Answer 1

Two options:

1. Use AJAX to load this in a separate request so that it doesn’t delay the page load. However, as this is a different domain, you will have to hack around the same origin policy e.g. using JSONP, so this can be tricky and has security implications if done badly. Try using jQuery, as per this tutorial.
2. Run a cron job that retrieves this data periodically on the server and stores it in your database so it can be loaded from there.

Either way is fine, but if the data volume is large and/or the remote connection may be slow, then the cron option may be preferable.